Search for dissertations about: "helix-loop-helix"
Showing result 11 - 15 of 50 swedish dissertations containing the word helix-loop-helix.
-
11. Regulation of dioxin receptor activity by phosphorylation and protein-protein interaction
Abstract : The dioxin receptor together with its partner factor Arnt belongs to the basic helix-loop-helix/PAS family of transcription factors. The receptor is the mediator of the biological effects of a number of environmental pollutants such as dioxin and other related compounds. READ MORE
-
12. New regulators of xylem lignification in arabidopsis
Abstract : The ability of land plants to grow upright, bear their own weight and withstand adverse environmental conditions is largely dependent on the secondary xylem tissues of the stem. The xylem cells acquire thick secondary cell walls which are composed of cellulose, hemicellulose and lignin. READ MORE
-
13. bHLH transcription factors in differentiating neuroblastoma cells
Abstract : Neuroblastoma is a tumor of the sympathetic nervous system, and arises during early childhood. The tumor is highly heterogeneous and evidence, such as expression of genes normally only expressed during embryonic and fetal stages, suggests that the tumor is of embryonic origin and that the tumor arises as a consequence of perturbed differentiation during the development of the sympathetic nervous system. READ MORE
-
14. Protein-protein interactions in model systems : design, control of catalytic activity and biosensor applications
Abstract : This thesis describes the design of polypeptides, unordered in the monomeric state but capable of folding into helix-loop-helix motifs and dimerise to form four-helix bundles. The goal of the design was to encode them with the capacity to form dimers highly selectively and the ability to carry out molecular functions in the folded state but not in the unordered state, and thus to establish a molecular link between recognition and function. READ MORE
-
15. Transcriptional regulation in neuroblastoma cells under normoxic and hypoxic conditions
Abstract : The childhood malignancy neuroblastoma develops from early cells of the sympathetic nervous system (SNS), and the tumors often produce catecholamines. Neuroblastoma cells retain several characteristics of immature sympathetic cells including the expression of a number of transcription factors normally expressed during embryogenesis. READ MORE
